AHL specs: IP vs. V24/serial

[centerfield13]

Hello,

Are the interface specifications (messages, etc) different for a PMS (hotel) interface if the communication method is IP/ethernet as opposed to V24/serial? I am experiencing a communications issue right now between my PMS and my Alcatel 4400, and I'm being told it is because we're trying to do it via IP and that everything is different with IP.

Any advice people can offer would be most appreciated.

Cheers,

Tyler

[bjin]

The frames are identical. The only difference is a keepalive mechanism that needs to be handled in ip connection.
Oxe tunnels the linf msgs through ahltcp process instead of redirecting the IO to a serial port, hence no difference.

[enio.eltz]

Hi

Yes, there's no difference. I've had an OXE R8 with serial port ( AHL ). There was some errors in this communication due to serial. When I've changed for IP everything was ok.

Regards.

[centerfield13]

Thanks everybody!

One follow-up question: I'm being told the system is asking for a username/password to retrieve the data over IP. This is very odd... is this an Alcatel configuration issue? We haven't seen this in the serial connections we've done.

[bjin]

Odd indeed :0) AHL doesn't have user/pwd negotiation at all. Anyone stating anything else just don't know what they talking about. Just connect over TCP/2561 and initialize properly and your'e good to go. Only one connection is allowed and a second connection will kill the existing one so be careful when testing it. The crusial part is the keep alive mechanism which must be handled properly or else the link will die.
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